on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
name: Test
jobs:
  test:
    strategy:
      matrix:
        go-version: [1.17.x]
        os: [ubuntu-latest, macos-latest, windows-latest]
    runs-on: ${{ matrix.os }}
    steps:
    - name: Install Go
      uses: actions/setup-go@v2
      with:
        go-version: ${{ matrix.go-version }}
    - name: Checkout code
      uses: actions/checkout@v2
    - name: Test
      run: |
        go env
        go test ./...
    - name: Test with -race
      # macos and windows tend to be a bit slower,
      # and it's rare that a race in garble would be OS-specific.
      # also note that this can take 5-10m, so use a larger timeout.
      if: matrix.os == 'ubuntu-latest'
      run: |
        go test -race -timeout=20m ./...

  # We don't care about GOARCH=386 particularly,
  # but it helps ensure we support 32-bit hosts and targets well.
  # TODO: use CGO_ENABLED=1 once we figure out how to install gcc-multilib,
  # and once gotooltest forwards the value of CGO_ENABLED to the scripts.
  test-386:
    runs-on: ubuntu-latest
    env:
      GOARCH: 386
    steps:
    - name: Install Go
      uses: actions/setup-go@v2
      with:
        go-version: 1.17.x
    - name: Checkout code
      uses: actions/checkout@v2
    - name: Test
      run: |
        go env
        go test ./...

  test-gotip:
    runs-on: ubuntu-latest
    continue-on-error: true # master may not be as stable
    steps:
    - name: Install Go
      env:
        GO_COMMIT: b357b05b70d2b8c4988ac2a27f2af176e7a09e1b # 2021-12-21
      run: |
        cd $HOME
        mkdir $HOME/gotip
        cd $HOME/gotip

        wget -O gotip.tar.gz https://go.googlesource.com/go/+archive/${GO_COMMIT}.tar.gz
        tar -xf gotip.tar.gz
        echo "devel go1.18-${GO_COMMIT}" >VERSION

        cd src
        ./make.bash
        echo "GOROOT=$HOME/gotip" >>$GITHUB_ENV
        echo "$HOME/gotip/bin" >>$GITHUB_PATH
    - name: Checkout code
      uses: actions/checkout@v2
    - name: Test
      run: |
        go env
        go test ./...

  code-checks:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v2
    - name: Test that only LF line endings are used
      run: ./scripts/crlf-test.sh